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2106 | serge | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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3 | ;; Copyright (C) KolibriOS team 2004-2011. All rights reserved. ;; |
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4 | ;; Distributed under terms of the GNU General Public License ;; |
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5 | ;; ;; |
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6 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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7 | |||
2130 | serge | 8 | |
9 | IRQ_POOL_SIZE equ 48 |
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10 | |||
11 | |||
2106 | serge | 12 | macro __list_add new, prev, next |
13 | { |
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14 | mov [next+LHEAD.prev], new |
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15 | mov [new+LHEAD.next], next |
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16 | mov [new+LHEAD.prev], prev |
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17 | mov [prev+LHEAD.next], new |
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18 | } |
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19 | |||
20 | macro list_add new, head |
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21 | { |
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22 | mov eax, [head+LHEAD.next] |
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23 | __list_add new, head, eax |
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24 | } |
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25 | |||
26 | macro list_add_tail new, head |
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27 | { |
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28 | mov eax, [head+LHEAD.prev] |
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29 | __list_add new, eax, head |
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30 | } |
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31 | |||
32 | uglobal |
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33 | |||
34 | align 16 |
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2130 | serge | 35 | irqh_tab rd LHEAD.sizeof * IRQ_RESERVED / 4 |
2106 | serge | 36 | |
2130 | serge | 37 | irqh_pool rd IRQH.sizeof * IRQ_POOL_SIZE /4 |
2106 | serge | 38 | next_irqh rd 1 |
39 | |||
40 | irq_active_set rd 1 |
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2130 | serge | 41 | irq_failed rd IRQ_RESERVED |
2106 | serge | 42 | |
43 | endg |
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44 | |||
45 | align 4 |
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46 | proc attach_int_handler stdcall, irq:dword, handler:dword, user_data:dword |
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47 | locals |
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48 | .irqh dd ? |
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49 | endl |
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50 | |||
51 | and [.irqh], 0 |
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52 | |||
53 | push ebx |
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54 | |||
55 | mov ebx, [irq] ;irq num |
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56 | test ebx, ebx |
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57 | jz .err |
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58 | |||
2130 | serge | 59 | cmp ebx, IRQ_RESERVED |
2106 | serge | 60 | jae .err |
61 | |||
62 | mov edx, [handler] |
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63 | test edx, edx |
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64 | jz .err |
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65 | |||
66 | pushfd |
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67 | cli |
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68 | |||
69 | ;allocate handler |
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70 | |||
71 | mov ecx, [next_irqh] |
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72 | test ecx, ecx |
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73 | jz .fail |
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74 | |||
75 | mov eax, [ecx] |
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76 | mov [next_irqh], eax |
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77 | mov [.irqh], ecx |
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78 | |||
2130 | serge | 79 | mov [irq_failed+ebx*4], 0 ;clear counter |
80 | |||
2106 | serge | 81 | mov eax, [user_data] |
82 | mov [ecx+IRQH.handler], edx |
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83 | mov [ecx+IRQH.data], eax |
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84 | |||
85 | lea edx, [irqh_tab+ebx*8] |
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86 | list_add_tail ecx, edx ;clobber eax |
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2130 | serge | 87 | stdcall enable_irq, ebx |
2106 | serge | 88 | |
89 | .fail: |
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90 | popfd |
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91 | .err: |
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92 | pop ebx |
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93 | mov eax, [.irqh] |
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94 | ret |
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95 | |||
96 | endp |
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97 | |||
98 | if 0 |
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99 | align 4 |
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100 | proc get_int_handler stdcall, irq:dword |
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101 | |||
102 | mov eax, [irq] |
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103 | cmp eax, 15 |
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104 | ja .fail |
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105 | mov eax, [irq_tab + 4 * eax] |
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106 | ret |
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107 | .fail: |
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108 | xor eax, eax |
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109 | ret |
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110 | endp |
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111 | end if |
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112 | |||
113 | |||
114 | align 4 |
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115 | proc detach_int_handler |
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116 | |||
117 | ret |
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118 | endp |
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119 | |||
120 | |||
121 | macro irq_serv_h [num] { |
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122 | forward |
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123 | align 4 |
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124 | .irq_#num : |
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125 | push num |
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126 | jmp .main |
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127 | } |
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128 | |||
129 | align 16 |
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130 | irq_serv: |
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131 | |||
132 | ; .irq_1: |
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133 | ; push 1 |
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134 | ; jmp .main |
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135 | ; etc... |
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136 | |||
137 | irq_serv_h 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15 |
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138 | irq_serv_h 16, 17, 18, 19, 20, 21, 22, 23 |
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139 | |||
140 | purge irq_serv_h |
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141 | |||
142 | align 16 |
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143 | .main: |
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144 | save_ring3_context |
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145 | |||
146 | mov ebp, [esp + 32] |
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147 | mov bx, app_data ;os_data |
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148 | mov ds, bx |
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149 | mov es, bx |
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150 | |||
151 | cmp [v86_irqhooks+ebp*8], 0 |
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152 | jnz v86_irq |
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153 | |||
154 | cmp bp, 6 |
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155 | jnz @f |
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156 | push ebp |
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157 | call [fdc_irq_func] |
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158 | pop ebp |
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159 | @@: |
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160 | |||
161 | cmp bp, 14 |
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162 | jnz @f |
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163 | push ebp |
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164 | call [irq14_func] |
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165 | pop ebp |
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166 | @@: |
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167 | cmp bp, 15 |
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168 | jnz @f |
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169 | push ebp |
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170 | call [irq15_func] |
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171 | pop ebp |
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172 | @@: |
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173 | bts [irq_active_set], ebp |
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174 | |||
175 | lea esi, [irqh_tab+ebp*8] ; esi= list head |
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176 | mov ebx, esi |
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177 | .next: |
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178 | mov ebx, [ebx+IRQH.list.next] ; ebx= irqh pointer |
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179 | cmp ebx, esi |
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180 | je .done |
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181 | |||
182 | push ebx ; FIX THIS |
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183 | push edi |
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184 | push esi |
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185 | |||
186 | push [ebx+IRQH.data] |
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187 | call [ebx+IRQH.handler] |
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188 | add esp, 4 |
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189 | |||
190 | pop esi |
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191 | pop edi |
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192 | pop ebx |
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193 | |||
194 | test eax, eax |
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195 | jz .next |
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196 | |||
197 | btr [irq_active_set], ebp |
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198 | jmp .next |
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199 | |||
200 | .done: |
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201 | btr [irq_active_set], ebp |
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202 | jnc .exit |
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203 | |||
204 | inc [irq_failed+ebp*4] |
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205 | .exit: |
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206 | mov [check_idle_semaphore],5 |
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207 | |||
208 | mov eax, ebp |
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209 | call IRQ_EOI |
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210 | restore_ring3_context |
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211 | add esp, 4 |
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212 | iret |
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213 | |||
2130 | serge | 214 | align 4 |
215 | irqD: |
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216 | push eax |
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217 | push ecx |
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218 | xor eax,eax |
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219 | out 0xf0,al |
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220 | mov eax, 13 |
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221 | call IRQ_EOI |
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222 | pop ecx |
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223 | pop eax |
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224 | iret |
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2106 | serge | 225 |